IT1395894B1 - METHOD TO ACQUIRE AUDIO SIGNALS AND ITS AUDIO ACQUISITION SYSTEM - Google Patents

METHOD TO ACQUIRE AUDIO SIGNALS AND ITS AUDIO ACQUISITION SYSTEM

Info

Publication number
IT1395894B1
IT1395894B1 ITTO2009A000713A ITTO20090713A IT1395894B1 IT 1395894 B1 IT1395894 B1 IT 1395894B1 IT TO2009A000713 A ITTO2009A000713 A IT TO2009A000713A IT TO20090713 A ITTO20090713 A IT TO20090713A IT 1395894 B1 IT1395894 B1 IT 1395894B1
Authority
IT
Italy
Prior art keywords
acquisition system
audio
acquire
audio signals
signals
Prior art date
Application number
ITTO2009A000713A
Other languages
Italian (it)
Inventor
Angelo Farina
Leonardo Scopece
Original Assignee
Rai Radiotelevisione Italiana
Aida S R L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rai Radiotelevisione Italiana, Aida S R L filed Critical Rai Radiotelevisione Italiana
Priority to ITTO2009A000713A priority Critical patent/IT1395894B1/en
Priority to PCT/IB2010/054210 priority patent/WO2011042823A1/en
Priority to EP10765502.9A priority patent/EP2478715B1/en
Priority to ES10765502T priority patent/ES2430251T3/en
Priority to US13/496,375 priority patent/US8965004B2/en
Publication of ITTO20090713A1 publication Critical patent/ITTO20090713A1/en
Application granted granted Critical
Publication of IT1395894B1 publication Critical patent/IT1395894B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166—Microphone arrays; Beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/401—2D or 3D arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Stereophonic System (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
ITTO2009A000713A 2009-09-18 2009-09-18 METHOD TO ACQUIRE AUDIO SIGNALS AND ITS AUDIO ACQUISITION SYSTEM IT1395894B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO2009A000713A IT1395894B1 (en) 2009-09-18 2009-09-18 METHOD TO ACQUIRE AUDIO SIGNALS AND ITS AUDIO ACQUISITION SYSTEM
PCT/IB2010/054210 WO2011042823A1 (en) 2009-09-18 2010-09-17 Method for acquiring audio signals, and audio acquisition system thereof
EP10765502.9A EP2478715B1 (en) 2009-09-18 2010-09-17 Method for acquiring audio signals, and audio acquisition system thereof
ES10765502T ES2430251T3 (en) 2009-09-18 2010-09-17 Procedure to acquire audio signals and audio acquisition system
US13/496,375 US8965004B2 (en) 2009-09-18 2010-09-17 Method for acquiring audio signals, and audio acquisition system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO2009A000713A IT1395894B1 (en) 2009-09-18 2009-09-18 METHOD TO ACQUIRE AUDIO SIGNALS AND ITS AUDIO ACQUISITION SYSTEM

Publications (2)

Publication Number Publication Date
ITTO20090713A1 ITTO20090713A1 (en) 2011-03-19
IT1395894B1 true IT1395894B1 (en) 2012-10-26

Family

ID=41728279

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO2009A000713A IT1395894B1 (en) 2009-09-18 2009-09-18 METHOD TO ACQUIRE AUDIO SIGNALS AND ITS AUDIO ACQUISITION SYSTEM

Country Status (5)

Country Link
US (1) US8965004B2 (en)
EP (1) EP2478715B1 (en)
ES (1) ES2430251T3 (en)
IT (1) IT1395894B1 (en)
WO (1) WO2011042823A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9173046B2 (en) * 2012-03-02 2015-10-27 Sennheiser Electronic Gmbh & Co. Kg Microphone and method for modelling microphone characteristics
JP2017102085A (en) * 2015-12-04 2017-06-08 キヤノン株式会社 Information processing apparatus, information processing method, and program
CN105791966A (en) * 2016-03-11 2016-07-20 四川长虹电器股份有限公司 Method for switching microphone audio equipment for Android smart television
WO2018072819A1 (en) 2016-10-19 2018-04-26 Huawei Technologies Co., Ltd. Method and apparatus for controlling acoustic signals to be recorded and/or reproduced by an electro-acoustical sound system
EP3571852A1 (en) 2017-02-24 2019-11-27 Huawei Technologies Co., Ltd. Microphone assembly having a reconfigurable geometry
EP3525482B1 (en) 2018-02-09 2023-07-12 Dolby Laboratories Licensing Corporation Microphone array for capturing audio sound field
US10701481B2 (en) 2018-11-14 2020-06-30 Townsend Labs Inc Microphone sound isolation baffle and system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6157403A (en) * 1996-08-05 2000-12-05 Kabushiki Kaisha Toshiba Apparatus for detecting position of object capable of simultaneously detecting plural objects and detection method therefor
US6041127A (en) * 1997-04-03 2000-03-21 Lucent Technologies Inc. Steerable and variable first-order differential microphone array
JP3344647B2 (en) * 1998-02-18 2002-11-11 富士通株式会社 Microphone array device
JP3789685B2 (en) * 1999-07-02 2006-06-28 富士通株式会社 Microphone array device
EA011601B1 (en) * 2005-09-30 2009-04-28 Скуэрхэд Текнолоджи Ас A method and a system for directional capturing of an audio signal
US8483416B2 (en) * 2006-07-12 2013-07-09 Phonak Ag Methods for manufacturing audible signals
US8121311B2 (en) * 2007-11-05 2012-02-21 Qnx Software Systems Co. Mixer with adaptive post-filtering

Also Published As

Publication number Publication date
US20120188434A1 (en) 2012-07-26
ITTO20090713A1 (en) 2011-03-19
EP2478715B1 (en) 2013-07-24
EP2478715A1 (en) 2012-07-25
WO2011042823A1 (en) 2011-04-14
US8965004B2 (en) 2015-02-24
ES2430251T3 (en) 2013-11-19

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